function number_format (number, decimals, dec_point, thousands_sep) {

    var n = number, prec = decimals;
 
    var toFixedFix = function (n,prec) {
        var k = Math.pow(10,prec);        return (Math.round(n*k)/k).toString();
    };
 
    n = !isFinite(+n) ? 0 : +n;
    prec = !isFinite(+prec) ? 0 : Math.abs(prec);    var sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep;
    var dec = (typeof dec_point === 'undefined') ? '.' : dec_point;
 
    var s = (prec > 0) ? toFixedFix(n, prec) : toFixedFix(Math.round(n), prec); //fix for IE parseFloat(0.55).toFixed(0) = 0;
     var abs = toFixedFix(Math.abs(n), prec);
    var _, i;
 
    if (abs >= 1000) {
        _ = abs.split(/\D/);        i = _[0].length % 3 || 3;
 
        _[0] = s.slice(0,i + (n < 0)) +
              _[0].slice(i).replace(/(\d{3})/g, sep+'$1');
        s = _.join(dec);    } else {
        s = s.replace('.', dec);
    }
 
    var decPos = s.indexOf(dec);    if (prec >= 1 && decPos !== -1 && (s.length-decPos-1) < prec) {
        s += new Array(prec-(s.length-decPos-1)).join(0)+'0';
    }
    else if (prec >= 1 && decPos === -1) {
        s += dec+new Array(prec).join(0)+'0';    }
    return s;
}

function validate_email(str){
	var emailRegEx = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(str.match(emailRegEx)){
		return true;
	}else{
		return false;
	}
}

function trim(s) {
	s = s.replace(/(^\s*)|(\s*$)/gi,"");
	s = s.replace(/[ ]{2,}/gi," ");
	s = s.replace(/\n /,"\n");
	return s;
}

function print_r(theObj){
	  if(theObj.constructor == Array ||
	     theObj.constructor == Object){
	    document.write("<ul>")
	    for(var p in theObj){
	      if(theObj[p].constructor == Array||
	         theObj[p].constructor == Object){
	document.write("<li>["+p+"] => "+typeof(theObj)+"</li>");
	        document.write("<ul>")
	        print_r(theObj[p]);
	        document.write("</ul>")
	      } else {
	document.write("<li>["+p+"] => "+theObj[p]+"</li>");
	      }
	    }
	    document.write("</ul>")
	  }
	}


